128306790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23371}}^1$

素因数の和:23445

約数の個数: 48

約数和(自身を含む): 339080976

約数和(自身を除く): 210774186

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 61, 90, 122, 183, 305, 366, 549, 610, 915, 1098, 1830, 2745, 5490, 23371, 46742, 70113, 116855, 140226, 210339, 233710, 350565, 420678, 701130, 1051695, 1425631, 2103390, 2851262, 4276893, 7128155, 8553786, 12830679, 14256310, 21384465, 25661358, 42768930, 64153395, 128306790]

約数ペア:

[(1, 128306790), (2, 64153395), (3, 42768930), (5, 25661358), (6, 21384465), (9, 14256310), (10, 12830679), (15, 8553786), (18, 7128155), (30, 4276893), (45, 2851262), (61, 2103390), (90, 1425631), (122, 1051695), (183, 701130), (305, 420678), (366, 350565), (549, 233710), (610, 210339), (915, 140226), (1098, 116855), (1830, 70113), (2745, 46742), (5490, 23371)]